{
  "title": "Circumference of Circle (Mensuration) - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Find circumference of circle with radius 7cm: ⭕",
      "options": { "A": "42cm", "B": "43cm", "C": "44cm", "D": "45cm" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 14cm: 📏",
      "options": { "A": "43cm", "B": "44cm", "C": "45cm", "D": "46cm" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Find circumference: radius 10cm (π=3.14): 🎯",
      "options": { "A": "61.8cm", "B": "62.8cm", "C": "63.8cm", "D": "64.8cm" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "Circumference of circle radius 3.5cm: 🔵",
      "options": { "A": "21cm", "B": "22cm", "C": "23cm", "D": "24cm" },
      "correct_answer": "B"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Find circumference: diameter 20cm: ⚪",
      "options": { "A": "61.8cm", "B": "62.8cm", "C": "63.8cm", "D": "64.8cm" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Circumference of circle radius 5.5cm: 🔘",
      "options": {
        "A": "34.54cm",
        "B": "35.54cm",
        "C": "36.54cm",
        "D": "33.54cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Find circumference: radius 9cm: 🌀",
      "options": {
        "A": "56.52cm",
        "B": "57.52cm",
        "C": "58.52cm",
        "D": "55.52cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 18cm: 🎡",
      "options": {
        "A": "55.52cm",
        "B": "56.52cm",
        "C": "57.52cm",
        "D": "58.52cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Find circumference: radius 12cm: ⭕",
      "options": {
        "A": "74.36cm",
        "B": "75.36cm",
        "C": "76.36cm",
        "D": "77.36cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 22cm: 🎯",
      "options": {
        "A": "68.08cm",
        "B": "69.08cm",
        "C": "70.08cm",
        "D": "71.08cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find circumference: radius 6.5cm: 🔵",
      "options": {
        "A": "40.82cm",
        "B": "41.82cm",
        "C": "42.82cm",
        "D": "43.82cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 16cm: 📊",
      "options": {
        "A": "49.12cm",
        "B": "50.24cm",
        "C": "51.12cm",
        "D": "52.12cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Find circumference: radius 8.5cm: 🎲",
      "options": {
        "A": "53.38cm",
        "B": "54.38cm",
        "C": "55.38cm",
        "D": "56.38cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 24cm: ⚪",
      "options": {
        "A": "74.36cm",
        "B": "75.36cm",
        "C": "76.36cm",
        "D": "77.36cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Find circumference: radius 11cm: 🔘",
      "options": {
        "A": "68.08cm",
        "B": "69.08cm",
        "C": "70.08cm",
        "D": "71.08cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 28cm: 🎪",
      "options": {
        "A": "86.92cm",
        "B": "87.92cm",
        "C": "88.92cm",
        "D": "89.92cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Find circumference: radius 15cm: 🌀",
      "options": { "A": "93.2cm", "B": "94.2cm", "C": "95.2cm", "D": "96.2cm" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 30cm: ⭐",
      "options": { "A": "93.2cm", "B": "94.2cm", "C": "95.2cm", "D": "96.2cm" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Find circumference: radius 13.5cm: 🔄",
      "options": {
        "A": "84.78cm",
        "B": "85.78cm",
        "C": "86.78cm",
        "D": "87.78cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "Circumference of circle diameter 26cm: 🏆",
      "options": {
        "A": "80.64cm",
        "B": "81.64cm",
        "C": "82.64cm",
        "D": "83.64cm"
      },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "If circumference = 44cm, find radius: 🔍",
      "options": { "A": "6cm", "B": "6.5cm", "C": "7cm", "D": "7.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Find diameter when circumference is 31.4cm: 📐",
      "options": { "A": "9cm", "B": "9.5cm", "C": "10cm", "D": "10.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "If circumference = 66cm, find radius: 🧮",
      "options": { "A": "10cm", "B": "10.5cm", "C": "11cm", "D": "11.5cm" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 94.2cm: ⚙️",
      "options": { "A": "29cm", "B": "29.5cm", "C": "30cm", "D": "30.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "If circumference = 50.24cm, find radius: 🔢",
      "options": { "A": "7cm", "B": "7.5cm", "C": "8cm", "D": "8.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 78.5cm: 🎯",
      "options": { "A": "24cm", "B": "24.5cm", "C": "25cm", "D": "25.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "If circumference = 37.68cm, find radius: 📏",
      "options": { "A": "5cm", "B": "5.5cm", "C": "6cm", "D": "6.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 125.6cm: 🔄",
      "options": { "A": "39cm", "B": "39.5cm", "C": "40cm", "D": "40.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "If circumference = 88cm, find radius: 🧩",
      "options": { "A": "13cm", "B": "13.5cm", "C": "14cm", "D": "14.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 62.8cm: ⚡",
      "options": { "A": "19cm", "B": "19.5cm", "C": "20cm", "D": "20.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "If circumference = 100.48cm, find radius: 🎲",
      "options": { "A": "15cm", "B": "15.5cm", "C": "16cm", "D": "16.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 157cm: ⭕",
      "options": { "A": "49cm", "B": "49.5cm", "C": "50cm", "D": "50.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "If circumference = 75.36cm, find radius: 🔵",
      "options": { "A": "11cm", "B": "11.5cm", "C": "12cm", "D": "12.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 113.04cm: 📊",
      "options": { "A": "35cm", "B": "35.5cm", "C": "36cm", "D": "36.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "If circumference = 131.88cm, find radius: 🎡",
      "options": { "A": "20cm", "B": "20.5cm", "C": "21cm", "D": "21.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 172.7cm: 🔘",
      "options": { "A": "54cm", "B": "54.5cm", "C": "55cm", "D": "55.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "If circumference = 56.52cm, find radius: 🌀",
      "options": { "A": "8cm", "B": "8.5cm", "C": "9cm", "D": "9.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 188.4cm: ⚪",
      "options": { "A": "59cm", "B": "59.5cm", "C": "60cm", "D": "60.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "If circumference = 138.16cm, find radius: 🔄",
      "options": { "A": "21cm", "B": "21.5cm", "C": "22cm", "D": "22.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Find diameter when circumference = 204.1cm: 🎯",
      "options": { "A": "64cm", "B": "64.5cm", "C": "65cm", "D": "65.5cm" },
      "correct_answer": "C"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Find circumference of semicircle radius 14cm: 🌙",
      "options": {
        "A": "71.96cm",
        "B": "72.96cm",
        "C": "73.96cm",
        "D": "74.96cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Circumference of quadrant radius 21cm: 📐",
      "options": {
        "A": "74.36cm",
        "B": "75.36cm",
        "C": "76.36cm",
        "D": "77.36cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Find perimeter: Semicircle diameter 28cm: 🔄",
      "options": {
        "A": "71.96cm",
        "B": "72.96cm",
        "C": "73.96cm",
        "D": "74.96cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Circumference of three-quarter circle radius 10cm: 🔵",
      "options": { "A": "62.8cm", "B": "63.8cm", "C": "64.8cm", "D": "65.8cm" },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Find perimeter: Quarter circle radius 16cm: 🎯",
      "options": {
        "A": "57.12cm",
        "B": "58.12cm",
        "C": "59.12cm",
        "D": "60.12cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Circumference of semicircle diameter 42cm: 🌓",
      "options": {
        "A": "107.94cm",
        "B": "108.94cm",
        "C": "109.94cm",
        "D": "110.94cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Find perimeter: Three-quarters circle radius 12cm: 🔄",
      "options": {
        "A": "75.36cm",
        "B": "76.36cm",
        "C": "77.36cm",
        "D": "78.36cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Circumference of quadrant diameter 20cm: 🧩",
      "options": { "A": "35.7cm", "B": "36.7cm", "C": "37.7cm", "D": "38.7cm" },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Find perimeter: Semicircle radius 18cm: ⭕",
      "options": {
        "A": "92.52cm",
        "B": "93.52cm",
        "C": "94.52cm",
        "D": "95.52cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Circumference of five-sixths circle radius 15cm: 5️⃣/6️⃣",
      "options": { "A": "78.5cm", "B": "79.5cm", "C": "80.5cm", "D": "81.5cm" },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Find perimeter: Quarter circle diameter 24cm: 📊",
      "options": {
        "A": "42.84cm",
        "B": "43.84cm",
        "C": "44.84cm",
        "D": "45.84cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Circumference of semicircle radius 25cm: 🌗",
      "options": {
        "A": "128.5cm",
        "B": "129.5cm",
        "C": "130.5cm",
        "D": "131.5cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Find perimeter: Three-quarters circle diameter 32cm: 🔵",
      "options": {
        "A": "100.48cm",
        "B": "101.48cm",
        "C": "102.48cm",
        "D": "103.48cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Circumference of quadrant radius 28cm: 🎲",
      "options": {
        "A": "99.96cm",
        "B": "100.96cm",
        "C": "101.96cm",
        "D": "102.96cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Find perimeter: Semicircle diameter 36cm: 🌀",
      "options": {
        "A": "92.52cm",
        "B": "93.52cm",
        "C": "94.52cm",
        "D": "95.52cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Circumference of two-thirds circle radius 9cm: 2️⃣/3️⃣",
      "options": {
        "A": "37.68cm",
        "B": "38.68cm",
        "C": "39.68cm",
        "D": "40.68cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Find perimeter: Quarter circle radius 30cm: ⭐",
      "options": {
        "A": "107.1cm",
        "B": "108.1cm",
        "C": "109.1cm",
        "D": "110.1cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Circumference of semicircle diameter 44cm: 🌙",
      "options": {
        "A": "113.04cm",
        "B": "114.04cm",
        "C": "115.04cm",
        "D": "116.04cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Find perimeter: Three-quarters circle radius 20cm: 🔄",
      "options": {
        "A": "125.6cm",
        "B": "126.6cm",
        "C": "127.6cm",
        "D": "128.6cm"
      },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Circumference of five-eighths circle radius 16cm: 5️⃣/8️⃣",
      "options": { "A": "62.8cm", "B": "63.8cm", "C": "64.8cm", "D": "65.8cm" },
      "correct_answer": "A"
    }
  ]
}